javascript:(function() {
	const emails = [
		'email1@outlook.com',
		'email2@outlook.com',
		'email3@outlook.com'
	];

	const baseUrl = 'https://outlook.office365.com/mail/';

	if ( ! window.location.href.includes( baseUrl ) ) {
		alert( 'This bookmarklet only works on Outlook email pages.' );
		return;
	}

	var emailIndex = localStorage.getItem( 'outlookEmailIndex' );

	if ( emailIndex === null ) {
		emailIndex = 0;

		for( const [i, email] of emails.entries() ) {
			if ( window.location.href.includes(email) ) {
				emailIndex = i;
				break;
			}
		}
	}

	if ( emailIndex >= emails.length - 1 ) {
		emailIndex = 0;
	} else {
		emailIndex++;
	}

	localStorage.setItem( 'outlookEmailIndex', emailIndex );
	window.open( baseUrl + emails[emailIndex], '_self' );
})();